/*分隔式*/
.p_left {
    float: left;
    width: 80%;
}

.p_right {
    float: right;
    width: 20%;
}

/*全局*/
* {
    font-family: Frutiger;
    color: black;
    letter-spacing: normal;
    /*字母间距：默认*/
}

/*内容结构*/
.h2_chap {
    background: #60afff;
    padding: 14px;
    text-align: center;
}

.h3_impo {
    background: darkgrey;
    padding: 8px;
    text-indent: 13px;
}

.h3_seco {
    background: lightgray;
    padding: 7px;
    text-indent: 13px;
}

.hr_chap {
    height: 3px;
    background: #000000;
}

/*首行代码文本*/
.inde_code {
    white-space: nowrap;
    text-indent: -1.5em;
    line-height: 1.5em;
    font-weight: bold;
    font-family: Helvetica;
}

/*次行代码文本*/
.inde_code2 {
    white-space: nowrap;
    text-indent: 1.5em;
    line-height: 1.5em;
    font-weight: bold;
    font-family: Helvetica;
}

/*嵌套标签*/
a abbr {
    text-decoration: none;
    color: black;
}

/*aside 用于文本内容   blockquote 用于代码语法说明*/
aside blink,
blockquote blink {
    color: red;
    font-weight: bolder;
    font-family: Bodoni;
}

aside b,
blockquote b {
    color: #0071e1;
    font-weight: bolder;
    font-family: Bodoni;
}

li font {
    color: #000000;
    font-weight: normal;
}

div h3 {
    white-space: nowrap;
    /*强制不换行*/
    line-height: 1.4em;
    text-indent: 7.4%;
}

div h4 {
    white-space: nowrap;
    text-indent: 14.5%;
    line-height: 0.3em;
}

/*单标签*/
a:hover {
    color: crimson;
}

a {
    text-decoration: none;
}

abbr {
    text-decoration: none;
    font-weight: bolder;
}

li {
    line-height: 2em;
    color: #0071e1;
    font-weight: bolder;
}

img {
    border: black solid 2px;
}

blockquote {
    line-height: 1.4em;
    color: black;
    font-weight: bold;
}